Pulp beater or disintegrator



Dec. 22, 1953 R. J. SERPAS PULP BEATER OR DI'SINTEGRATOR 4 Sheets-Sheet 1 Filed March 9, 1953 au w1 S. if MP @fw mtv/@m N/ P n Dec. 22, 1953 R. J. sERPAs PULP BEATER 0R DISINTEGRATOR 4 Sheets-Sheet 3 Filed March 9, 1953 m .NWS

K @Nm INVENTOR. RALPH J 65K/@H5 Dec. 22, 1953 R. J. sERPAs PULP BEATER OR DISINTEGRATOR INVENTOR.

RALPH d, SERP/ls i BY /7 fra/wasn Patented Dec. 22, 12953 UNITED STATES PATENT OFFICE PULP BEATER R DISINTEGRATOR Ralph J. Serpas, Minneapolis, Minn.

Application March 9, 1953, Serial No. 340,965

(Cl. 95E- 22) 11 Claims.

l This invention relates to the paper making art, and particularly to a machine for disintegrating, grinding or beating paper pulp. As is well known to those skilled inthe art, said paper pulp originally contained large particles of material and these are beaten or disintegrated so the particles are reduced to a much smaller size.

It is an object of this invention to provide a pulp beater or disintegrator comprising a bed plate, a series of disintegrating members secured to said bed plate and upstanding therefrom, the same extending transversely of said bed plate together with an endless member of exible material in the form of a belt or chain, said member having an elongated substantially rectilinear portion and having a series of 'spaced disintegrating members secured thereto, said mem bers at said rectilinear portion moving in close proximity to the said members on said bed plate.

It is a further object of the invention to provide means for moving one or both ends of said bed plate toward and from said rectilinear portion of said endless member to bring said disintegrating members on said bed plate and endless member respectively closer together or farther apart.

It is another obj ect of this invention to provide such a structure as set forth in the last paragraph save one, in which said rectilinear portion of said endless member may be above or beneath said bed plate. If said portion is beneath said bed plate the disintegrating members on said bed plate will extend downwardly toward said endless member.

It is still another object of this invention to provide a structure as set forth above in which said endless member may constitute a metal belt running over rollers; said endless member .may constitute a link belt or a composition belt.

It is more specifically lan object of the invention to provide a device for beating or disintegrating paper pulp, which device comprises a casing having a receiving chamber at one end and a discharge passage at its other end. spaced rollers or sprockets are disposed at the ends of said chambers and an endless iiexible member runs over said rollers or sprockets, the same having secured thereto series of spaced bars, said endless member having an elongated substantially rectilinear portion. .A bed plate is disposed at one side of said rectilinear portion, the same having a series of bars secured thereto and extending toward said rectilinear portion, the bars on said endless member and on said bed plate having edges disposed vin proximity whereby pulp from said chamber will be carried by one end of said endless member between the bars -on said endless member and .the bars on said `bed plate and will pass out through said 'discharge passage.

It is still another object of the invention to provide a device as above set forth in which said bed plate may be made in sections pivoted together at their ends together with means for moving said sections toward or from said endless member.

It is also a further object of this invention to provide a machine for beating or disintegrating pulp comprising a pair of endless belts or chains cach having an elongated rectilinear portion, said belts or chains having secured thereto a multiplicity of transversely extending members or bars, `said endless members being arranged with said elongated portions adjacent yeach otherk Vin superposed relation so that the free edges of said bars will move close to eachother, together with means for delivering pulp between the bars on said pair of members whereby the pulp will be disintegrated by said bars as said endlessmembers travel preferably at different speeds.

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawings in which like reference characters refer to similar parts throughout the several views and in which:

Fig. 1 is a vertical section taken substantially on line I-I of Fig. 2;

Fig. 2 is a vertical section taken substantially on line 2-'-2 of Fig. 1, as indicated by the arrows; Fig. 3 is a partial vertical section similar to Fig. 1 showing a modiiication;

Fig. 4 is a partial vertical section through ank endless member or belt used;

Fig. 5 is a view similar to Fig. 4 showing av modified structure;

Fig. 6 is a view partly in side elevation and partly in vertical section showing a modied structure;

Fig. 7 is a view similar to Fig. 4 showing a modification Fig. 8 is a view similar to Fig. 4 showing a further modiiication;

Fig. 9 is a vertical section taken on line 9-9 of Fig. 8 as indicated by the arrows; and

Fig. l0 is a view partly in side elevation andpartly in central longitudinal section showing av modied form of the invention.

Referring to the drawings, a machine is shown comprising a casing l5 having a top wall Ia and side walls isb. Top wall la at one end has secured thereto a vertical wall d spaced from which is a downwardly inclined bottom wall ld. A chamber le is thus formed between the side walls lib and the walls 50 and ld. The top wall 15a curves downwardly at one end and has secured thereto the top wall iiif of a discharge passageformed by said wall l'f, the side wall i511 and the bottom wall |59 which extends downwardly. The bottom wall ld has secured thereto a `frame-member i6. Member I6 has av horizontal portion Ita having secured therein a nut la in which is threaded a screw I9 having at its upper end a collar lila which is rotatable with screw le in a pair of members 22 secured by bolts 23 to a channel member 24. Bolts 23 extend through the flange members 22 into a bed plate 25. Screw I9 has at its lower end a hand wheel lsb.

A frame member' 2d is secured to the bottom wall leg and has a horizontal portion 28a in which is disposed a. nut 29 in which is threaded a screw 3d. Screw has at its upper end a collar alla rotatable in a pair of flange members 32 secured by bolts 33 to a channel member 3d. Bolts 33 extend through channel member 34 into the bed plate 25. The end portions of bed plate 2t are spaced slightly from the vertical walls of memn bers I@ and 28. The bed plate 2S has secured thereto and upstanding therefrom a series of rather closely spaced bars 38. l.While bars 38 could be variously formed and attached to bed plate te in various ways, as shown in Fig. l, said bars constitute angle bars and have substantially horizontal flanges secured to bed plate 25 by rivets or screws te. As shown in Fig. l, bars 38 decrease in height rorn the end of bed plate 2S adjacent chamber ille tothe other end of said bed plate. Bed plate 2t moves between and is guided vertically at its sides by the side walls 15b of casing i5.

Journaled in bearings 4c secured to each side rwall l?) by bolts d! are spaced shafts t2. Shafts i thus extend across the chamber in casing le and each has secured thereto at its ends a pulley or sprocket 553. Sprocket 'i3 has a hub to which shaft 452 extends and said hub is secured to shaft 42 by screw d5. Preferably members 53 are pro vided with circumferentially spaced teeth d3@ which enter spaced apertures 44h in an endless member or belt 43 which runs over the pulleys or sprockets Belt All may be a metal belt, a composition belt with or without metal inserts or it may be a link belt. Various types of link belts are now on the market as are various types of metal and composition belts. The belt d8 per se forms no part of the present invention. Secured to the endless member ed is a plurality ol rather closely spaced bars Ell. While these bars may be variously formed and attached to the belt in various ways, in Figs. 1 and 2 bars 5B are shown as angle bars having one ilange thereof projecting substantially at right angles from endless member and having their other flange secured to mernlcer ifi by bolts or rivets lll. As shown in Eig. 2, the bars 5E) extend transversely of member it and have their end portions closely adjacent the side Walls i519. Member 44 has a rather elongated substantially rectilinear portion lea which is guided by and moves in contact with the lower sides of a pair of members 52 having vertical iianges 52a secured respectively to the side walls leb by the bolts 33. As shown in Fig. l, the end portions of members 52 are curved slightly upwardly.

In operation, the pulp is placed in the charnber ide. Shafts d2 will be driven from a suitable source of power and member 4Q will be moved around sprockets or pulleys 43 in a counterclock wise direction. Bars 5E! will move along with the rectilinear portion of said member d@ and the free ends or edges of these bars will move in close proximity to the upper free ends or edges 0f bars 38. The pulp will be carried along from chamber le by the movement of bars 5,9 and will pass between the ends of said bars and the ends '4 of bars Se. The pulp will thus be greatly disinte grated and beaten and the particles thereof brought `to the desired small size and the pulp after passing between the bars on members d and 2S respectively will be discharged through the passage leb. By having the bars 3E decrease in height toward the discharge end of the machine there will be less pulp collected between said bars. One or both ends of bed plate can be moved upv-fardly or downwardly to bring the free ends of bars Sie closer to or farther from the free ends of bars lil. The desired disintegrating effect can thus be had on the pulp. Bed plate 2S is moved by rotating the screws le or The bed plate will be guided at its sides by t'. side walls Ich. The member can be moved at quite a high speed. A rapid and very efficient beating or disintegrating of the pulp thus had and the disintegrating action extends over` Quite a long area in the machine. The machine is much more efficient than one where just the rotating cylinder is provided with bars which coact with bars on the segment of a cylinder. As stated, a longer beating action is secured and the distance between the beating bars can be more nicely adjusted to get the desired results.

In Fig. 6 a casing 5e is shown quite similar to casing l5, the same having side walls i550. and a bottom. wall 5th. Bottom wall Seh has a semi cylindrical portion elle at one end to which is se cured a wall 5l extending upwardly in an inclined direction. A wall 58 is spaced from wall 5l, the same extending substantially vertically and with wall lil and side walls lita, forms a chamber Sill. A wall Se is secured to one end of bottom wall 5th, the saine extending vertically and having a downwardly and rearwardly clined portion Gila. The wall Si is spaced from wall El), the same extending vertically and with wall Sil and side walls 5ta. forming a chamber A Wall t3 extends vertically along one end of side walls 56 and has .a curved upward portion eX- tending vertically. A fra-me portion is secured to the upper end of wall @3. `Member has a substantially horizontal portion in which is secured a nut E having threaded therein a screw Et, the lower end of which has a collar therein rotatable in a recess in a bed plate said collar being held in said recess by an overlying plate @il secured to bed plate B3 by screws Si. Screw has a hand wheel lita, at its upper end. A frame member le is secured to the lower end of wall the same having a substantially horizontal portion in which is secured a nut ll. A screw is threaded in nut li and has a collar at its lower end rotatable in a recess in bed plate SS and retained in said recess by `a plate i3 secured by bolts I4 to bed plate Bed plate et has se cured to its lower side and extending downwardly therefrom a series of bars lli. Bars 'it are spaced rather closely together and while said bars might be variously formed and secured, in the embodiment of the invention shown in e, they are shown as angle bars having one flange engaging plate E and secured thereto by bolts or rivets ll. The ends of plate 68 are spaced slightly from the inner surfaces of members l@ and and the sides of said plate will be guided by the inner sides of said walls Gta.

Channel members i8 are secured to the side walls 56a at each side of casing 56, there being one of the channels 'i8 adjacent each end of casing 56 at each of said sides. Channel 'i3 will be secured to walls 5ta in any suitable manner as by rivets 80. Bearings Si are secured to the members 134 in any suitable manner, as by weldsecured to the bearings la by bolts 66. Screwsk lEI also have handwheels itil) at their lower ends. It will be seen that bearings 43 can be moved upwardly and downwardly by rotating screws itil and shafts [5,9 and REQ will move in elongated slots ila in the members |34. The sides of the belts le@ and ld and the ends of the bars is! and l@ move closely adjacent the side walls itc of the casing Hill.

in operation, the pulp to be beaten or disintegrated will be placed in the chamber or hopper having the bottom plate it. The belt IQ@ will be traversed by driving one or both of shafts [Bti and i3@ to rotate members 38, as indicated by the arrows. Belt Uit will thus travel about mem" bers i3d in a counter-clockwise direction. One or both shafts le@ and i563 will be driven and belt 154 will be traversed about members |52 which will rotate in a clockwise direction. Belt Uitl will be traversed more slowly than belt itil. The pulp will be fed between the bars on the respective belts and will be engaged by the bars Mi and 155 and will be brought to the desired condition. It will be seen that belt itil can be raised and lowered by rotating the screws itil. The free edges of bars ilii and 53 can thus be brought to the desired distance apart to give the best results. The relative speeds of belts Mii and ld will be varied to give the best action on the pulp. In some cases it might be desirable to traverse the belts Ulli and ll-i in opposite directions.

From the above description it will be seen that I have provided a very novel and eilicient form of pulp beater or disintegrator. As stated, the endless belts carrying the disintegrating bars can be moved at comparatively speed. A large area is covered by the bars on the bed plate and endless belt and the machine thus has a large capacity. The bars on the bed plate and endless belt can be nicely adjusted to give the desired disintegrating action. The action of the relatively rnoving bars as above described separates the fibres of the pulnas well as disintegratinq the pulp. This separation of the libres and disintegration of the pulp assists in the hydration of the pulp. 1t will be apparent that the device has a high degree of utility.

It will of course be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of anp-licants invention, which, generally stated, consists in a device capable of carrying out the obiects above set forth, in the parts and combinations oi parts disclosed and defined in the appended claims.

What is claimed is:

l. A machine for beating paper pulp having in combination, a bed plate, spaced members secured to said plate and extending across said plate, an endless flexible member havingr an elon-v gated rectilinear portion movable substantiallyl parallel to said bed plate, spaced second members secured to said endless member and extending transversely thereof and movable in close proximity to said first mentioned members, means for moving said endless member, and meansfor directing pulp between said iirst mentioned mernbers and second members.

2. The structure set forth in claim 1, the distance between the adjacent portions of said spaced members on said plate and said spaced members on said flexible member increasing toward one end of said bed plate.

3. The structure set forth in claim 1, said spaced members being in the form of bars, said bars on said endless member and bed plate having respectively edges disposed in proximity.

4. The structure set forth in claim l, and stationary members for guiding said elongated portion of said endless member rectilinearly.

5. A machine for beating paper pulp having in combination, a bed plate, a series of spaced upstanding members secured to said plate and extending transversely thereof, spaced rollers adjacent the end of said bed plate respectively, an endless flexible member of considerable width running over said rollers and having a rectilinear portion of considerable length movable in proximity to said bed plate, a series of spaced second members secured to said endless member, extendf ing transversely thereof and moving in proximity to said first mentioned spaced members, means for moving said flexible member, and means for directing pulp between said bed plate and endless member.

6. The structure set forth in claim 5, and means for moving one end of said bed plate toward and from said endless member.

'7. The structure set forth in claim 5, and means at each end of Said bed plate for moving the same toward and from said endless member.

8. The structure set forth in claim l, said rectilinear portion of said endless member being disposed above said bed plate.

9. A machine for beating paper pulp having in combination, a bed plate, a series of spaced bars secured to said bed plate upstanding therefrom and extending transversely thereof, rotatable members adjacent the ends of said bed plate, an endless member running over said rotatable members and having an elongated rectilinear portion extending substantially7 parallel to said bed plate, a series of bars secured to said endless member and. movable in proximity to said bars on .said bed plate, a chamber at one end of said endless member for containing pulp, a discharge for pulp at the opposite end of said endless menber, and means for moving said endless 10. The structure set forth in claim l, bed plate comprising sections pivotally connected at their ends, and means for moving said sections toward and from said endless member.

11. A machine for beating or disintegrating paper pulp having in combination, a pair of endless members, spaced rotating members over which said endless members respectively travel, said endless members each having an elongated rectilinear portion, which portions of said respective endless members are adjacent each other in superposed substantially parallel relation, each or" said endless members having secured thereto e. multiplicity of bars extending transversely thereof, said bars having free edges and said edges on said respective rectilinear portions bei disposed closely adjacent each other, and me M- for delivering pulp between said bars.

RALP J. SERPAS.

References Cited in the file of this patent UNITED STATES PATENTS 67,799 `Germany Mar. 28, i893 sfr... 

